L4 AI Box
Plug into a compatible factory CarPlay USB port and run L4 on the screen already built into your car.
- Keep your factory display
- Simple plug-in setup
- L4 software included
L4 turns a compatible car display into a customizable command center for navigation, music, live visuals, and the way you want your dashboard to feel.
Real L4 interfaceStart with the screen you already have, or replace an older factory radio.
Plug into a compatible factory CarPlay USB port and run L4 on the screen already built into your car.
Upgrade to a modern touchscreen with the full L4 experience ready from the first startup.
Bring the interface to hardware you already own.
Tell us what you drive and what’s in the dash. We’ll identify the right L4 route and verify the exact L4 hardware, then send a private Shopify invoice. Vehicle-specific installation parts are purchased separately.
Every product includes the L4 experience. We confirm compatibility before you pay.
A compatible Android touchscreen with the full L4 experience ready at startup.
A plug-in L4 setup for vehicles with a compatible factory screen and wired CarPlay.
Standalone L4 software for compatible Android-powered stereos you already have.
Prices are starting points. Dash kits, wiring harnesses, adapters, and installation are not included.
Many older cars can take a modern Android stereo, but dash opening, wiring, factory amplifiers, cameras, and steering-wheel controls all affect the final match. Every request is reviewed before a product is sold.
The L4 system selector puts Galactic, Vice, Aquatic, and Retro one tap away.

These are actual screens from L4—not concept art.








Switch between Galactic, Aquatic, and Vice themes instead of staring at the same factory interface every day.
Keep maps, music, and the controls you actually use close together in one focused full-screen layout.
Animated visuals, music-reactive details, and a dashboard made to feel like part of the car—not an afterthought.
L4 combines the interface, visual themes, and setup guidance into one focused system from Lengal Stereos.
L4 AI Box is intended for compatible vehicles with wired CarPlay. Final compatibility depends on the car and the box hardware.
No. We match the L4 stereo to the general vehicle setup, but Lengal Stereos does not sell the dash kit, wiring harness, antenna adapter, data interface, or installation service. You or your installer purchases those separately.
Yes, for compatible Android-powered stereos. Send the exact stereo model through the vehicle matcher so the hardware can be checked first.
We first confirm which L4 product and hardware configuration makes sense for the vehicle. Your Shopify invoice covers the L4 product only; vehicle-specific installation parts are not included.
Submit your vehicle once and get a hardware match before spending anything.
Request my vehicle match